| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.internal.win32.*; |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.events.*; |
| |
| /** |
| * Instances of this class represent a selectable user interface object |
| * that represents a button in a tool bar. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>PUSH, CHECK, RADIO, SEPARATOR, DROP_DOWN</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of the styles CHECK, PUSH, RADIO, SEPARATOR and DROP_DOWN |
| * may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| */ |
| public class ToolItem extends Item { |
| ToolBar parent; |
| Control control; |
| String toolTipText; |
| Image disabledImage, hotImage; |
| Image disabledImage2; |
| int id; |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>ToolBar</code>) and a style value |
| * describing its behavior and appearance. The item is added |
| * to the end of the items maintained by its parent. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#PUSH |
| * @see SWT#CHECK |
| * @see SWT#RADIO |
| * @see SWT#SEPARATOR |
| * @see SWT#DROP_DOWN |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public ToolItem (ToolBar parent, int style) { |
| super (parent, checkStyle (style)); |
| this.parent = parent; |
| parent.createItem (this, parent.getItemCount ()); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>ToolBar</code>), a style value |
| * describing its behavior and appearance, and the index |
| * at which to place it in the items maintained by its parent. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * @param index the index to store the receiver in its parent |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#PUSH |
| * @see SWT#CHECK |
| * @see SWT#RADIO |
| * @see SWT#SEPARATOR |
| * @see SWT#DROP_DOWN |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public ToolItem (ToolBar parent, int style, int index) { |
| super (parent, checkStyle (style)); |
| this.parent = parent; |
| parent.createItem (this, index); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is selected, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * When <code>widgetSelected</code> is called when the mouse is over the arrow portion of a drop-down tool, |
| * the event object detail field contains the value <code>SWT.ARROW</code>. |
| * <code>widgetDefaultSelected</code> is not called. |
| * </p> |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #removeSelectionListener |
| * @see SelectionEvent |
| */ |
| public void addSelectionListener(SelectionListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Selection,typedListener); |
| addListener (SWT.DefaultSelection,typedListener); |
| } |
| |
| static int checkStyle (int style) { |
| return checkBits (style, SWT.PUSH, SWT.CHECK, SWT.RADIO, SWT.SEPARATOR, SWT.DROP_DOWN, 0); |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| void click (boolean dropDown) { |
| /* |
| * In order to emulate all the processing that |
| * happens when a mnemonic key is pressed, fake |
| * a mouse press and release. This will ensure |
| * that radio and pull down items are handled |
| * properly. |
| */ |
| int hwnd = parent.handle; |
| if (OS.GetKeyState (OS.VK_LBUTTON) < 0) return; |
| int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); |
| RECT rect = new RECT (); |
| OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect); |
| int lParam = (dropDown ? rect.right - 1 : rect.left) | (rect.top << 16); |
| int hotIndex = OS.SendMessage (hwnd, OS.TB_GETHOTITEM, 0, 0); |
| OS.SendMessage (hwnd, OS.WM_LBUTTONDOWN, 0, lParam); |
| OS.SendMessage (hwnd, OS.WM_LBUTTONUP, 0, lParam); |
| if (hotIndex != -1) { |
| OS.SendMessage (hwnd, OS.TB_SETHOTITEM, hotIndex, 0); |
| } |
| } |
| |
| Image createDisabledImage (Image image, Color color) { |
| Display display = getDisplay (); |
| if (OS.IsWinCE) { |
| return new Image (display, image, SWT.IMAGE_DISABLE); |
| } |
| Rectangle rect = image.getBounds (); |
| Image disabled = new Image (display, rect); |
| GC gc = new GC (disabled); |
| gc.setBackground (color); |
| gc.fillRectangle (rect); |
| int hDC = gc.handle; |
| int hImage = image.handle; |
| int fuFlags = OS.DSS_DISABLED; |
| switch (image.type) { |
| case SWT.BITMAP: fuFlags |= OS.DST_BITMAP; break; |
| case SWT.ICON: fuFlags |= OS.DST_ICON; break; |
| } |
| OS.DrawState (hDC, 0, 0, hImage, 0, 0, 0, rect.width, rect.height, fuFlags); |
| gc.dispose (); |
| return disabled; |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location |
| * relative to its parent. |
| * |
| * @return the receiver's bounding rectangle |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Rectangle getBounds () { |
| checkWidget(); |
| int hwnd = parent.handle; |
| int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); |
| RECT rect = new RECT (); |
| OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect); |
| int width = rect.right - rect.left; |
| int height = rect.bottom - rect.top; |
| return new Rectangle (rect.left, rect.top, width, height); |
| } |
| |
| /** |
| * Returns the control that is used to fill the bounds of |
| * the item when the items is a <code>SEPARATOR</code>. |
| * |
| * @return the control |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Control getControl () { |
| checkWidget(); |
| return control; |
| } |
| |
| /** |
| * Returns the receiver's disabled image if it has one, or null |
| * if it does not. |
| * <p> |
| * The disabled image is displayed when the receiver is disabled. |
| * </p> |
| * |
| * @return the receiver's disabled image |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Image getDisabledImage () { |
| checkWidget(); |
| return disabledImage; |
| } |
| |
| public Display getDisplay () { |
| ToolBar parent = this.parent; |
| if (parent == null) error (SWT.ERROR_WIDGET_DISPOSED); |
| return parent.getDisplay (); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled, and |
| * <code>false</code> otherwise. A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * |
| * @return the receiver's enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #isEnabled |
| */ |
| public boolean getEnabled () { |
| checkWidget(); |
| int hwnd = parent.handle; |
| int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); |
| return (fsState & OS.TBSTATE_ENABLED) != 0; |
| } |
| |
| /** |
| * Returns the receiver's hot image if it has one, or null |
| * if it does not. |
| * <p> |
| * The hot image is displayed when the mouse enters the receiver. |
| * </p> |
| * |
| * @return the receiver's hot image |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public Image getHotImage () { |
| checkWidget(); |
| return hotImage; |
| } |
| |
| /** |
| * Returns the receiver's parent, which must be a <code>ToolBar</code>. |
| * |
| * @return the receiver's parent |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public ToolBar getParent () { |
| checkWidget(); |
| return parent; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is selected, |
| * and false otherwise. |
| * <p> |
| * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, |
| * it is selected when it is checked (which some platforms draw as a |
| * pushed in button). If the receiver is of any other type, this method |
| * returns false. |
| * </p> |
| * |
| * @return the selection state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean getSelection () { |
| checkWidget(); |
| if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return false; |
| int hwnd = parent.handle; |
| int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); |
| return (fsState & OS.TBSTATE_CHECKED) != 0; |
| } |
| |
| /** |
| * Returns the receiver's tool tip text, or null if it has not been set. |
| * |
| * @return the receiver's tool tip text |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public String getToolTipText () { |
| checkWidget(); |
| return toolTipText; |
| } |
| |
| /** |
| * Gets the width of the receiver. |
| * |
| * @return the width |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getWidth () { |
| checkWidget(); |
| int hwnd = parent.handle; |
| int index = OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); |
| RECT rect = new RECT (); |
| OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect); |
| return rect.right - rect.left; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled and all |
| * of the receiver's ancestors are enabled, and <code>false</code> |
| * otherwise. A disabled control is typically not selectable from the |
| * user interface and draws with an inactive or "grayed" look. |
| * |
| * @return the receiver's enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #getEnabled |
| */ |
| public boolean isEnabled () { |
| checkWidget(); |
| return getEnabled () && parent.isEnabled (); |
| } |
| |
| void releaseChild () { |
| super.releaseChild (); |
| parent.destroyItem (this); |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| parent = null; |
| control = null; |
| toolTipText = null; |
| disabledImage = hotImage = null; |
| if (disabledImage2 != null) disabledImage2.dispose (); |
| disabledImage2 = null; |
| } |
| |
| void releaseImages () { |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_IMAGE | OS.TBIF_STYLE; |
| int hwnd = parent.handle; |
| OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info); |
| /* |
| * Feature in Windows. For some reason, a tool item that has |
| * the style BTNS_SEP does not return I_IMAGENONE when queried |
| * for an image index, despite the fact that no attempt has been |
| * made to assign an image to the item. As a result, operations |
| * on an image list that use the wrong index cause random results. |
| * The fix is to ensure that the tool item is not a separator |
| * before using the image index. Since separators cannot have |
| * an image and one is never assigned, this is not a problem. |
| */ |
| if ((info.fsStyle & OS.BTNS_SEP) == 0 && info.iImage != OS.I_IMAGENONE) { |
| ImageList imageList = parent.getImageList (); |
| ImageList hotImageList = parent.getHotImageList (); |
| ImageList disabledImageList = parent.getDisabledImageList(); |
| if (imageList != null) imageList.put (info.iImage, null); |
| if (hotImageList != null) hotImageList.put (info.iImage, null); |
| if (disabledImageList != null) disabledImageList.put (info.iImage, null); |
| } |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is selected. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #addSelectionListener |
| */ |
| public void removeSelectionListener(SelectionListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Selection, listener); |
| eventTable.unhook (SWT.DefaultSelection,listener); |
| } |
| |
| void resizeControl () { |
| if (control != null && !control.isDisposed ()) { |
| /* |
| * Set the size and location of the control |
| * separately to minimize flashing in the |
| * case where the control does not resize |
| * to the size that was requested. This |
| * case can occur when the control is a |
| * combo box. |
| */ |
| Rectangle itemRect = getBounds (); |
| control.setSize (itemRect.width, itemRect.height); |
| Rectangle rect = control.getBounds (); |
| rect.x = itemRect.x + (itemRect.width - rect.width) / 2; |
| rect.y = itemRect.y + (itemRect.height - rect.height) / 2; |
| control.setLocation (rect.x, rect.y); |
| } |
| } |
| |
| void selectRadio () { |
| int index = 0; |
| ToolItem [] items = parent.getItems (); |
| while (index < items.length && items [index] != this) index++; |
| int i = index - 1; |
| while (i >= 0 && items [i].setRadioSelection (false)) --i; |
| int j = index + 1; |
| while (j < items.length && items [j].setRadioSelection (false)) j++; |
| setSelection (true); |
| } |
| |
| /** |
| * Sets the control that is used to fill the bounds of |
| * the item when the items is a <code>SEPARATOR</code>. |
| * |
| * @param control the new control |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> |
| * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setControl (Control control) { |
| checkWidget(); |
| if (control != null) { |
| if (control.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (control.parent != parent) error (SWT.ERROR_INVALID_PARENT); |
| } |
| if ((style & SWT.SEPARATOR) == 0) return; |
| this.control = control; |
| resizeControl (); |
| } |
| |
| /** |
| * Enables the receiver if the argument is <code>true</code>, |
| * and disables it otherwise. |
| * <p> |
| * A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * </p> |
| * |
| * @param enabled the new enabled state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setEnabled (boolean enabled) { |
| checkWidget(); |
| int hwnd = parent.handle; |
| int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); |
| fsState &= ~OS.TBSTATE_ENABLED; |
| if (enabled) fsState |= OS.TBSTATE_ENABLED; |
| OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState); |
| if (image != null) updateImages (); |
| } |
| |
| /** |
| * Sets the receiver's disabled image to the argument, which may be |
| * null indicating that no disabled image should be displayed. |
| * <p> |
| * The disbled image is displayed when the receiver is disabled. |
| * </p> |
| * |
| * @param image the disabled image to display on the receiver (may be null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setDisabledImage (Image image) { |
| checkWidget(); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| disabledImage = image; |
| updateImages (); |
| } |
| |
| /** |
| * Sets the receiver's hot image to the argument, which may be |
| * null indicating that no hot image should be displayed. |
| * <p> |
| * The hot image is displayed when the mouse enters the receiver. |
| * </p> |
| * |
| * @param image the hot image to display on the receiver (may be null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setHotImage (Image image) { |
| checkWidget(); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| hotImage = image; |
| updateImages (); |
| } |
| |
| public void setImage (Image image) { |
| checkWidget(); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| super.setImage (image); |
| updateImages (); |
| } |
| |
| boolean setRadioSelection (boolean value) { |
| if ((style & SWT.RADIO) == 0) return false; |
| if (getSelection () != value) { |
| setSelection (value); |
| postEvent (SWT.Selection); |
| } |
| return true; |
| } |
| |
| /** |
| * Sets the selection state of the receiver. |
| * <p> |
| * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, |
| * it is selected when it is checked (which some platforms draw as a |
| * pushed in button). |
| * </p> |
| * |
| * @param selected the new selection state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setSelection (boolean selected) { |
| checkWidget(); |
| if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return; |
| int hwnd = parent.handle; |
| int fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); |
| fsState &= ~OS.TBSTATE_CHECKED; |
| if (selected) fsState |= OS.TBSTATE_CHECKED; |
| OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState); |
| } |
| /** |
| * Sets the receiver's text. The string may include |
| * the mnemonic character. |
| * </p> |
| * <p> |
| * Mnemonics are indicated by an '&' that causes the next |
| * character to be the mnemonic. When the user presses a |
| * key sequence that matches the mnemonic, a selection |
| * event occurs. On most platforms, the mnemonic appears |
| * underlined but may be emphasised in a platform specific |
| * manner. The mnemonic indicator character '&' can be |
| * escaped by doubling it in the string, causing a single |
| *'&' to be displayed. |
| * </p> |
| * |
| * @param string the new text |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the text is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setText (String string) { |
| checkWidget(); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| super.setText (string); |
| int hwnd = parent.handle; |
| int hHeap = OS.GetProcessHeap (); |
| TCHAR buffer = new TCHAR (parent.getCodePage (), string, true); |
| int byteCount = buffer.length () * TCHAR.sizeof; |
| int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); |
| OS.MoveMemory (pszText, buffer, byteCount); |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_TEXT | OS.TBIF_STYLE; |
| info.pszText = pszText; |
| info.fsStyle = (byte) (widgetStyle () | OS.BTNS_AUTOSIZE); |
| OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); |
| OS.HeapFree (hHeap, 0, pszText); |
| |
| /* |
| * Bug in Windows. For some reason, when the font is set |
| * before any tool item has text, the tool items resize to |
| * a very small size. Also, a tool item will only show text |
| * when text has already been set on one item and then a new |
| * item is created. The fix is to use WM_SETFONT to force |
| * the tool bar to redraw and layout. [1G0G7TV, 1G0FUJ5] |
| */ |
| int hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); |
| OS.SendMessage (hwnd, OS.WM_SETFONT, hFont, 0); |
| |
| parent.layoutItems (); |
| } |
| |
| /** |
| * Sets the receiver's tool tip text to the argument, which |
| * may be null indicating that no tool tip text should be shown. |
| * |
| * @param string the new tool tip text (or null) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setToolTipText (String string) { |
| checkWidget(); |
| toolTipText = string; |
| } |
| |
| /** |
| * Sets the width of the receiver. |
| * |
| * @param width the new width |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setWidth (int width) { |
| checkWidget(); |
| if ((style & SWT.SEPARATOR) == 0) return; |
| if (width < 0) return; |
| int hwnd = parent.handle; |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_SIZE; |
| info.cx = (short) width; |
| OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); |
| parent.layoutItems (); |
| } |
| |
| void updateImages () { |
| int hwnd = parent.handle; |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_IMAGE; |
| OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info); |
| if (info.iImage == OS.I_IMAGENONE && image == null) return; |
| ImageList imageList = parent.getImageList (); |
| ImageList hotImageList = parent.getHotImageList (); |
| ImageList disabledImageList = parent.getDisabledImageList(); |
| if (info.iImage == OS.I_IMAGENONE) { |
| Display display = getDisplay (); |
| Rectangle bounds = image.getBounds (); |
| Point size = new Point (bounds.width, bounds.height); |
| if (imageList == null) imageList = display.getToolImageList (size); |
| info.iImage = imageList.add (image); |
| parent.setImageList (imageList); |
| if (disabledImageList == null) disabledImageList = display.getToolDisabledImageList (size); |
| Image disabled = disabledImage; |
| if (disabledImage == null) { |
| if (disabledImage2 != null) disabledImage2.dispose (); |
| disabledImage2 = null; |
| disabled = image; |
| if (!getEnabled ()) { |
| Color color = parent.getBackground (); |
| disabled = disabledImage2 = createDisabledImage (image, color); |
| } |
| } |
| disabledImageList.add (disabled); |
| parent.setDisabledImageList (disabledImageList); |
| // if ((parent.style & SWT.FLAT) != 0) { |
| if (hotImageList == null) hotImageList = display.getToolHotImageList (size); |
| hotImageList.add (hotImage != null ? hotImage : image); |
| parent.setHotImageList (hotImageList); |
| // } |
| } else { |
| if (imageList != null) imageList.put (info.iImage, image); |
| if (disabledImageList != null) { |
| Image disabled = null; |
| if (image != null) { |
| if (disabledImage2 != null) disabledImage2.dispose (); |
| disabledImage2 = null; |
| disabled = disabledImage; |
| if (disabledImage == null) { |
| disabled = image; |
| if (!getEnabled ()) { |
| Color color = parent.getBackground (); |
| disabled = disabledImage2 = createDisabledImage (image, color); |
| } |
| } |
| } |
| disabledImageList.put (info.iImage, disabled); |
| } |
| if (hotImageList != null) { |
| Image hot = null; |
| if (image != null) hot = hotImage != null ? hotImage : image; |
| hotImageList.put (info.iImage, hot); |
| } |
| if (image == null) info.iImage = OS.I_IMAGENONE; |
| } |
| OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); |
| |
| parent.layoutItems (); |
| } |
| |
| int widgetStyle () { |
| if ((style & SWT.DROP_DOWN) != 0) return OS.BTNS_DROPDOWN; |
| if ((style & SWT.PUSH) != 0) return OS.BTNS_BUTTON; |
| if ((style & SWT.CHECK) != 0) return OS.BTNS_CHECK; |
| /* |
| * This code is intentionally commented. In order to |
| * consistently support radio tool items across platforms, |
| * the platform radio behavior is not used. |
| */ |
| // if ((style & SWT.RADIO) != 0) return OS.BTNS_CHECKGROUP; |
| if ((style & SWT.RADIO) != 0) return OS.BTNS_CHECK; |
| if ((style & SWT.SEPARATOR) != 0) return OS.BTNS_SEP; |
| return OS.BTNS_BUTTON; |
| } |
| |
| LRESULT wmCommandChild (int wParam, int lParam) { |
| if ((style & SWT.RADIO) != 0) { |
| if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) { |
| selectRadio (); |
| } |
| } |
| Event event = new Event (); |
| setInputState (event, SWT.Selection); |
| postEvent (SWT.Selection, event); |
| return null; |
| } |
| |
| } |